現(xiàn)用戶有一數(shù)據(jù)表格如下：id 書名 價(jià)格 操作1 A 10 選擇2 b 28 選擇3 c 39 選擇從庫(kù)中選出如上表格中數(shù)據(jù)，點(diǎn)“選擇”，出現(xiàn)填寫訂購(gòu)信息輸入框等，要求得到書的ID號(hào)，并和訂購(gòu)信息一并存入數(shù)據(jù)庫(kù)中，單人操作時(shí)沒有問題，可以得到ID，存儲(chǔ)一切正常，但當(dāng)兩個(gè)人同時(shí)運(yùn)行這個(gè)程序時(shí)，ID就總是取到最后點(diǎn)擊book_Click的那個(gè)ID，比如A先進(jìn)入book.aspx,并點(diǎn)擊了ID為1的書，這時(shí)B也在另外一臺(tái)機(jī)器上點(diǎn)擊進(jìn)入book.aspx,點(diǎn)擊選擇ID為2的BOOK，這時(shí)如果A填寫完了訂購(gòu)信息，點(diǎn)擊保存，存入庫(kù)中的是ID為2的書，A用戶應(yīng)該選擇的是ID=1，顯然系統(tǒng)取的是最后一次點(diǎn)擊book_click取到的值，為什么呢？請(qǐng)大俠賜教？代碼如下：protected void fill_tb(){Table2.Rows.Clear(); TableRow tr; TableHeaderCell th; TableCell tc;#region 填充表頭tr = new TableRow();th = new TableHeaderCell();th.Text = "ID";tr.Cells.Add(th);th = new TableHeaderCell();th.Text = "書名";tr.Cells.Add(th);th = new TableHeaderCell();th.Text = "價(jià)格";tr.Cells.Add(th);th = new TableHeaderCell();th.Text = "操作";tr.Cells.Add(th);Table2.Rows.Add(tr);#endregionstring sql ="select id,bookname,price from book ";DataSet dst = DBCommand.ExecuteDataSet(sql, "tab");int nums = dst.Tables[0].Rows.Count;for (int i = 0; i < nums; i++){#region 數(shù)據(jù)行tr = new TableRow();tr.HorizontalAlign = HorizontalAlign.Center;tc = new TableCell();tc.Text = dst.Tables[0].Rows[i]["id"].ToString();tr.Cells.Add(tc);//tc = new TableCell();tc.Text = dst.Tables[0].Rows[i]["bookname"].ToString();tr.Cells.Add(tc);//作業(yè)項(xiàng)目tc = new TableCell();tc.Text = dst.Tables[0].Rows[i]["price"].ToString();tr.Cells.Add(tc);//責(zé)任人tc = new TableCell();LinkButton lkbtn = new LinkButton();lkbtn.ID = dst.Tables[0].Rows[i]["id"].ToString();lkbtn.Text = "操 作";lkbtn.Click += new EventHandler(book_Click);tc.Controls.Add(lkbtn);tr.Cells.Add(tc);Table2.Rows.Add(tr);#endregion}dst.Dispose();}protected void book_Click(object sender, EventArgs e) //點(diǎn)擊事件{LinkButton btn = sender as LinkButton;bookid=Convert.ToInt32(btn.ID.ToString());Fill_db();//顯示詳單}